Italian verbo

← Proto-Indo-European *werh₁- (root)

← Proto-Indo-European *werdʰh₁o- (root)

← Proto-Indo-European *werdʰo- (derived)

← Proto-Indo-European *werh₁- (mention)

← Proto-Indo-European *-dʰh₁ (mention)

← Proto-Italic *werβom (inherited)

← Latin verbum (inherited)

→ Esperanto verbo (borrowed)

→ Ido verbo (derived)

→ Italian monoverbo (prefix)